[Cricopharyngeal myotomy for upper esophageal achalasia].

Cricopharyngeal achalasia (CA) causes inability to swallow liquids or solids without initiating a violent coughing spasm. Etiological factors which may precipitate obstruction by cricopharyngeal spasm include neuromuscular disorders, radical oral surgery, central nervous system disease, and idiopathic disorders. Cricopharyngeal myotomy is a simple procedure which gives considerable improvement in swallowing. 2 cases with complete dysphagia who were able to swallow fluids and solids after excision of the cricopharyngeal sphincter are described.